Bachman, Richard
Dutton, 1996
Buku Teks
Potten, A.J. van
Rabobank International Group, 1966
Buku Teks
Government of India Press, 1965
Buku Teks
Bhalla, Subhash
Oxford Book & Stationery Co., 1969
Buku Teks
Economic Research Institute For ASEAN And East Asia (ERIA), 2018
Buku Teks